1. Octagonal boron-carbide shackles, which are twice as
resistant to cutting as standard shackles
2. Dual ball bearing locking that gives twice the pull strength
and pry resistance
3. A protective cap on the cylinder or combination for better
protection against the elements
4. Rubber bumpers to protect surfaces from scratches

1. Octagonal boron-carbide shackles, which are twice as
resistant to cutting as standard shackles
2. Dual ball bearing locking that gives twice the pull strength
and pry resistance
3. A protective cap on the cylinder or combination for better
protection against the elements
4. Rubber bumpers to protect surfaces from scratches